He´s saying about big pressure in 750ml can. And about best black color used for outline. You can make black outline as well with MTN Maximo 750 but is not so good as MTN 2G Nitro 500ml, which covers better crossing the chrome pigment on unprepainted concrete wall. There is a mention of coverage, cca 8-10m2. Is a very nice spraycan, we can recomand all MTN products.
